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Magnolia Module Cache 5.5.9

  1. Project Clover database Mon Nov 25 2019 16:46:50 CET
  2. Package info.magnolia.module.cache.entry

File SingleReplayCacheEntryWrapper.java

 

Coverage histogram

../../../../../img/srcFileCovDistChart9.png
24% of files have more coverage

Code metrics

2
9
2
1
90
40
3
0.33
4.5
2
1.5
31.6% of code in this file is excluded from these metrics.

Classes

Class Line # Actions
SingleReplayCacheEntryWrapper 49 9 31.6% 3 2
0.8461538684.6%
 

Contributing tests

This file is covered by 8 tests. .

Source view

1    /**
2    * This file Copyright (c) 2015-2018 Magnolia International
3    * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10    * This file is distributed in the hope that it will be
11    * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12    * implied warranty of MERCHANTABILITY or FITNESS FOR A
13    * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14    * Redistribution, except as permitted by whichever of the GPL
15    * or MNA you select, is prohibited.
16    *
17    * 1. For the GPL license (GPL), you can redistribute and/or
18    * modify this file under the terms of the GNU General
19    * Public License, Version 3, as published by the Free Software
20    * Foundation. You should have received a copy of the GNU
21    * General Public License, Version 3 along with this program;
22    * if not, write to the Free Software Foundation, Inc., 51
23    * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24    *
25    * 2. For the Magnolia Network Agreement (MNA), this file
26    * and the accompanying materials are made available under the
27    * terms of the MNA which accompanies this distribution, and
28    * is available at http://www.magnolia-cms.com/mna.html
29    *
30    * Any modifications to this file must keep this entire header
31    * intact.
32    *
33    */
34    package info.magnolia.module.cache.entry;
35   
36    import info.magnolia.module.cache.filter.CachedEntry;
37   
38    import java.io.IOException;
39   
40    import javax.servlet.FilterChain;
41    import javax.servlet.ServletException;
42    import javax.servlet.http.HttpServletRequest;
43    import javax.servlet.http.HttpServletResponse;
44   
45    /**
46    * An implementation of CachedEntry which simply delegates once and only once to the "super" cachedEntry, for the sake of calling replay() after the entry was added.
47    * Can be replayed only once after creation (for satisfying of the first request).
48    */
 
49    public class SingleReplayCacheEntryWrapper implements CachedEntry {
50   
51    private CachedEntry delegate;
52    private final long lastModificationTime;
53    private final String originalURL;
54   
 
55  8 toggle public SingleReplayCacheEntryWrapper(CachedEntry delegate) {
56  8 this.delegate = delegate;
57    //these fields has to be set at this point since delegate=null after replay and these fields are used later e.g. in advanced cache policies
58  8 this.lastModificationTime = delegate.getLastModificationTime();
59  8 this.originalURL = delegate.getOriginalURL();
60    }
61   
 
62    toggle @Override
63    public int getTimeToLiveInSeconds() {
64    return -1; //since we can replay the delegate only once, we can cache forever
65    }
66   
 
67  3 toggle @Override
68    public void replay(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException, ServletException {
69    // First time a page is hit through the cache, concurrent requests are locked.
70    // Once the entry is in the cache entry however, concurrent requests won't be locked anymore.
71  3 synchronized (this) {
72  3 if (delegate != null) {
73  3 delegate.replay(request, response, chain);
74  3 delegate = null;
75  3 return;
76    }
77    }
78  0 throw new IllegalStateException("Already replayed !");
79    }
80   
 
81    toggle @Override
82    public String getOriginalURL() {
83    return originalURL;
84    }
85   
 
86    toggle @Override
87    public long getLastModificationTime() {
88    return lastModificationTime;
89    }
90    }